Wall Sandwich Panels · Grooved Façade
Secret Fix with Groove Wall Sandwich Panel
The Secret Fix with Groove Wall Sandwich Panel is the grooved variant of Jawdah's concealed-fix wall panel: fasteners stay hidden in the joint while a recessed groove line gives the PIR-cored façade a defined shadow pattern.
Where a plain concealed-fix wall reads as one smooth plane, a grooved façade is deliberately divided. The groove casts a thin shadow that marks each panel module, so the elevation looks ordered and the eye does not pick up small differences in flatness between neighbouring panels.
Jawdah includes this variant in its wall range, but the source data gives no item-specific text, groove dimensions or joint drawing. The guidance below explains what a grooved concealed-fix façade involves, which Jawdah wall-family facts apply, and what to ask the Jawdah team to confirm.
- FixingConcealed in the joint
- Face featureRecessed groove / shadow line
- Groove dataConfirmed per project
Quick answer
A secret fix with groove wall sandwich panel is a concealed-fix insulated façade panel whose face shows a recessed groove line, creating a shadow line between modules while keeping all screws hidden. Jawdah offers it within its PIR wall panel family. Groove size, position, cover width and joint details are not published and are confirmed by the Jawdah team per project.
Why architects choose a grooved concealed-fix façade
Large metal façades can look flat and featureless, especially on long industrial or commercial frontages. A groove line introduces scale: it breaks a long wall into a readable rhythm of bands, similar to the joint pattern of stone or precast cladding, without adding a second material.
The groove also works as a visual tolerance. Panels are never perfectly identical in flatness and colour, and a crisp shadow line between them hides those minor variations much better than a tight flush joint.
How the groove and the hidden fixing work together
The fixing principle is the same as on the plain Secret Fix Wall Sandwich Panel: fasteners pass through the panel edge into the rail and are covered by the next panel. The groove is an additional recess in the visible face. On many concealed-fix systems it is formed at the joint itself, so the joint becomes the shadow line, while others press a groove into the panel face as well.
The Jawdah source does not state where the groove is formed on this panel or how deep it is. Ask for the profile drawing before finalising elevations, because the groove position decides how the façade module is set out.
What Jawdah data covers this variant
Only the product name is listed for this item. The wall-family values below are taken from the Jawdah wall panel data and logically apply because the panel is part of the same PIR wall range.
| Topic | Status |
|---|---|
| Insulation core | PIR; core stated to meet DIN 4102 B2 fire classification |
| Thermal resistance by thickness | R 1.818 at 50 mm, 2.273 at 75 mm, 4.45 at 100 mm (family table) |
| Facings and coatings | PPGI, aluminium, stainless steel or galvanized iron; polyester or PVDF |
| Colour | Cloud White standard; other colours on request |
| Groove width, depth and position | Confirmed per project |
| Cover width and thicknesses offered | Confirmed per project |
Buildings that suit a grooved panel façade
Grooved concealed-fix panels are used where the façade must look designed but the budget and programme still favour panel construction: corporate frontages of factories and logistics centres, showrooms, schools and public service buildings, and the visible elevations of commercial developments. On internal walls, a groove is usually avoided in hygiene areas because recesses hold dirt.
- Front elevations of plants and distribution centres
- Showrooms and commercial buildings
- Institutional and public building façades
- Feature bands combined with plain concealed-fix panels
Setting out a grooved elevation
Draw the groove lines on the elevation before anything else. They should align with window heads, sills and floor lines where possible, and continue around corners so that the pattern does not break. Decide whether grooves run vertically or horizontally, since the orientation changes how rain and dust are shed.
Confirm the corner and opening trims at the same time with the Wall Flashings details: a flashing that cuts across a groove at the wrong level is the most visible defect on a grooved façade.
Cleaning and upkeep of grooved faces
In Saudi conditions fine dust settles in any horizontal recess. Horizontal grooves therefore need periodic washing with water and a mild detergent and a soft brush, while vertical grooves tend to self-clean better in rain. Avoid abrasive pads and solvent cleaners that can damage the polyester or PVDF coating, and inspect joint sealants during each cleaning round.
Avoidable errors with grooved panels
Most groove problems are setting-out problems rather than product problems.
- Fixing the elevation before receiving the groove profile drawing
- Letting groove lines miss window heads, sills or corners
- Using horizontal grooves on dusty sites without a cleaning plan
- Choosing grooved panels for hygiene walls where recesses are unwanted
- Assuming the groove changes the panel's thermal or fire data
Grooved vs plain secret fix panel
Both hide their fasteners and share the Jawdah PIR wall data. The choice is architectural: a plain concealed-fix face gives a seamless plane, while the grooved version gives a modular pattern and hides small panel-to-panel variations. For general wall selection by thickness and U-value, start at Wall Sandwich Panels.
| Aspect | Secret fix | Secret fix with groove |
|---|---|---|
| Look | Continuous smooth plane | Modular bands with shadow lines |
| Hides panel variations | Less | More |
| Dust in recesses | Minimal | Needs cleaning plan |
| Set-out effort | Moderate | Higher, grooves must align |
Key facts
- The Secret Fix with Groove Wall Sandwich Panel is the grooved concealed-fix variant in the Jawdah wall panel range.
- A grooved concealed-fix panel hides its fasteners in the joint and shows a recessed shadow line on the façade.
- Groove size, groove position and joint details of the Jawdah grooved panel are confirmed per project.
- Jawdah wall panels publish R-values of 1.818, 2.273 and 4.45 m²K/W for 50, 75 and 100 mm.
- Jawdah wall panels can be faced with PPGI, aluminium, stainless steel or galvanized iron.
- Horizontal grooves on façades in dusty climates need a periodic cleaning plan.
RFQ / BOQ checklist
- Elevations showing groove lines and their orientation
- Request for the groove profile drawing
- Thermal target or panel thickness
- Facing metal, coating and colour
- Areas of grooved panels vs plain concealed-fix panels
- Corner, window and base trim details
- Wind exposure and rail spacing data
- Delivery city and installation programme
Closer look
Technical resources
Technical document
Technical document: Secret Fix with Groove Wall Sandwich Panel (1)
English · 4.6 MB
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Technical data sheet: Secret Fix with Groove Wall Sandwich Panel (Rev. 12)
English · 1.0 MB
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Technical document: Secret Fix with Groove Wall Sandwich Panel (3)
English · 16.8 MB
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Technical data sheet: Secret Fix with Groove Wall Sandwich Panel (Rev. 2)
English · 2.7 MB
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Technical document: Secret Fix with Groove Wall Sandwich Panel (2)
English · 12.5 MB
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Product summary: Secret Fix with Groove Wall Sandwich Panel
English · 287 KB
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13–14In preparation
Further chapters in preparation
These parts of the product page are being prepared with the Jawdah technical team and will be published once verified.
Projects using this product
Project references are being prepared.
Compatible systems
System relationships for this product are being prepared.
Our technical team can share the current information on request.
Ask the technical teamFrequently asked questions
What is the groove on a secret fix sandwich panel?
It is a recessed line in the visible face, often at the joint, that creates a shadow line between panel modules while the fixings remain hidden.
What size is the groove on the Jawdah panel?
The Jawdah source does not publish groove width, depth or position. The Jawdah team confirms them with the profile drawing for each project.
Does the groove affect insulation?
The panel belongs to the Jawdah PIR wall family, whose thermal values are set by thickness. Confirm the effective values for the grooved profile in the Technical Data Sheet.
Should grooves run vertically or horizontally?
Both are used. Vertical grooves emphasise height and shed water and dust more easily; horizontal grooves make a low building look longer but collect more dust in desert conditions.
Can grooved and plain concealed-fix panels be combined?
Yes, many façades use grooved panels for feature bands and plain panels elsewhere. Confirm with Jawdah that both faces are available in the same thickness and colour for your project.
Is this panel suitable for food or clean areas?
Grooves are recesses that hold dirt, so smooth faces are usually preferred on hygiene walls. Use the grooved panel mainly on external architectural elevations.
How do I request a quotation?
Send elevations with the groove set-out, thickness or thermal target, colour and quantities. Jawdah prices panel projects individually rather than by a public list.
15Next step
Discuss a grooved panel façade
Send your elevations and groove set-out. The Jawdah team will confirm the grooved profile data, matching trims and a project quotation.